Home / 12,531.81-18,790.43-4,741.23

Finding the Fourth Proportional to 12,531.81, 18,790.43 and 4,741.23

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Solution

The fourth proportional to 12,531.81, 18,790.43 and 4,741.23 is: 7,109.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.81 : 18,790.43 = 4,741.23 : x
  2. Step 2: Convert to fraction form
    12,531.81/18,790.43 = 4,741.23/x
  3. Step 3: Cross multiply
    12,531.81x = 18,790.43 × 4,741.23
  4. Step 4: Simplify right side
    12,531.81x = 89,089,750.43
  5. Step 5: Solve for x
    x = 89,089,750.43/12,531.81
  6. Step 6: Final answer
    x = 7,109.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.